@inproceedings{oai:repo.qst.go.jp:00053671,
 author = {Nakamaru, Yasuo and Tagami, Keiko and Uchida, Shigeo and 中丸 康夫 and 田上 恵子 and 内田 滋夫},
 book = {Proceedings of the International Symposium on Radioecology and Environmental Dosimetry},
 month = {Mar},
 note = {The soil/soil solution distribution coefficient (Kd) of selenium (Se) 
was measured by the batch technique using 58 Japanese agricultural 
soils in order to evaluate Se migration behavior. Soils used were 
air-dried and passed through a 2-mm mesh sieve. Three gram amounts of 
each soil were transferred into a plastic bottle and 30 mL of 
deionized water were added to the soil. Prior to adding 75Se, a 
radioactive tracer of Se, the mixture was shaken for 24 h using an 
end-over-end shaker. Seven days after the addition of 75Se tracer, 
the soil solution was separated by centrifugation and filtration. 
Activity was measured with a NaI (Tl) autowell scintillation counter, 
and Kd-Se values were calculated.
For the agricultural soils, the Kd-Se values ranged from 12 to 1060. 
Among the soil groups, Andosols had higher Kd-Se values. All the 
Kd-Se values were significantly correlated with acid oxalate 
extractable Al (Alo) and Fe (Feo) at the 0.1% level. Alo and Feo 
content refer to the amount of active-Al and active-Fe. These results 
indicated that the active-Al and the active-Fe were the major 
adsorbents of Se in Japanese agricultural soils.},
 pages = {167--172},
 publisher = {Institute for Environmental Sciences},
 title = {Distribution coefficient of selenium in Japanese agricultural soils},
 year = {2004}
}